How do you do fcfs program in easy method using java?
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class fcfs extends JFrame implements ActionListener
{
JButton jb[] = new JButton[3];
JTextField jt1[],jt2[];
JLabel jl[],jl1,jl2,jl3;
JPanel jp,jp1;
Container con;
int k,p;
String str[] = {"SUBMIT","RESET","EXIT"};
String str1[] = {"Process","
AT","ST","WT","FT","TAT","NTAT"};
public fcfs()
{
super("fcfs scheduling algoritham");
con = getContentPane();
k= Integer.parseInt(JOptionPane.showInputDialog("Enter number
of
process"));
jl1 = new JLabel("Process");
jl2 = new JLabel("Arival Time");
jl3 = new JLabel("Service Time");
jl = new JLabel[k];
jt1 = new JTextField[k];
jt2 = new JTextField[k];
for(int i=0;i<k;i++)
{
jl[i] = new JLabel("process"+(i+1));
jt1[i] = new JTextField(10);
jt2[i] = new JTextField(10);
}
for(int i=0;i<3;i++)
{
jb[i] = new JButton(str[i]);
}
con.setLayout(new GridLayout(k+2,3));
con.add(jl1);
con.add(jl2);
con.add(jl3);
int l=0;
for(int i=0;i<k;i++)
{
con.add(jl[l]);
con.add(jt1[l]);
con.add(jt2[l]);
l++;
}
l=0;
for(int i=0;i<3;i++)
{
con.add(jb[l]);
jb[l].addActionListener(this);
l++;
}
}//end of constructor
public void actionPerformed(ActionEvent ae)
{
int FT[] = new int[k];
int WT[] = new int[k];
int TAT[] = new int[k];
float NTAT[] = new float[k];
float sum=0;
float avg;
JPanel main = new JPanel();
main.setLayout(new BorderLayout());
jp = new JPanel();
jp1 = new JPanel();
jp.setLayout(new GridLayout(k+1,7));
jp1.setLayout(new FlowLayout());
if(ae.getSource() jb[1])
{
setVisible(false);
fcfs window = new fcfs();
window.setSize(400,300);
window.setVisible(true);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}//END ACTION PERFORMED
public static void main(String[] args)
{
fcfs window = new fcfs();
window.setSize(400,300);
window.setVisible(true);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}//end main
}//end class
